Ptolemaeus Arabus et Latinus

`_`	(the underscore) is the placeholder for exactly one character.
`%`	(the percent sign) is the placeholder for no, one or more than one character.
`%%`	(two percent signs) is the placeholder for no, one or more than one character, but not for blank space (so that a search ends at word boundaries).

At the beginning and at the end, these placeholders are superfluous.

طرفا المقياسين ‘the tips of the pointers’

Arabic

Translation of:
References:	Alm. MS Tunis:
Greek:	τὰ τῶν γνωμονίων ἄκρα [Alm. Heiberg: I.12, 66:1-2]
Synonyms:
طرفا اللسانين	[Alm. MS Leiden: f. 10v]